Agentic AI

Rubber Duck Thursdays - Let's build with custom agents
GitHubChris dives into Copilot custom agents and custom instructions for the turn-based game MCP server project. After reviewing the changelog including enterprise bring-your-own-key support and Claude Opus 4.5, he restructures copilot-instructions.md, creates meta instruction files for writing instructions and agents, and explores plan mode for iterating on agent designs.

Rubber Duck Thursdays - Let's build
GitHubChris catches up on several weeks of GitHub releases, including new models including GPT-5.1, GPT-5.1 Codex, and GPT-5.1 Codex Mini, MCP registry controls, and isolated sub-agents. He then returns to the turn-based game MCP server project, using Copilot's agent mode to diagnose and fix a dependency upgrade failure.

Rubber Duck Thursdays - Time to build!
GitHubIn this live stream, we explore building a 3D tic-tac-toe visualization using Three.js and Copilot coding agent, demo MCP elicitation for gathering game preferences, and discuss the importance of context engineering when working with AI tools. We also cover GitHub changelog highlights including path-scoped custom instructions for Copilot code review and agents.md support.

Rubber Duck Thursdays - Building a turn-based-game MCP server
GitHubIn this live stream, we continue building a turn-based game MCP server, implementing MCP elicitation to gather user preferences and consolidating duplicate tool calls into cleaner abstractions. We also recap the latest GitHub changelog including npm trusted publishing with OIDC, Claude Opus 4.1, and Copilot coding agent updates.

Rubber Duck Thursdays - Build for the love of code
GitHubIn this episode, we recap the latest GitHub changelog including GitHub Spark entering public preview and coding agent support for instructions.md files. We introduce the 'Build for the love of code' hackathon, prototype a rubber duck debugging app with GitHub Spark, and build an MCP server from scratch using TypeScript while exploring tools, prompts, and resources.

Rubber Duck Thursdays - Copilot agent mode, coding agent and MCP servers
GitHubIn this episode, we review the latest GitHub changelog including remote MCP server support for coding agent and Copilot code review on mobile. We use the Playwright MCP server with Copilot agent mode to debug and fix UI issues in the Octo Arcade project, discuss the differences between ask, edit, and agent modes in VS Code, and explore MCP server concepts like tools, prompts, and resources.

Rubber Duck Thursdays - Let's build
GitHubIn this stream, Chris catches up on several weeks of GitHub updates including the remote MCP server preview and Copilot coding agent for business users. The live coding session demonstrates adding internationalization to the Copilot Airways app using Copilot coding agent, custom VS Code chat modes for planning, and agent mode in Xcode for iOS development.

Rubber Duck Thursdays - Let's build with agents
GitHubIn this episode, we recap the latest GitHub changelog updates including Copilot coding agent availability for pro users and the new Playwright MCP browser capability. We update Copilot custom instructions and setup steps for a GitHub Action project, use the Playwright MCP server to build interactive UI features on a trend radar app, and leverage Copilot coding agent to identify and fix technical debt.

Rubber Duck Thursdays - Copilot coding agent and Copilot agent mode
GitHubIn this stream, Chris recaps announcements from Microsoft Build, reviews three weeks of GitHub changelog updates, and does a deep dive into Copilot coding agent using the Copilot Airways demo app. Topics include assigning issues to Copilot, reviewing AI-generated pull requests, MCP integration with Notion, and best practices for writing well-scoped GitHub issues.

Extend GitHub Copilot coding agent with custom MCP tools
GitHubThis video shows how to create a GitHub Issue directly from Copilot Chat on GitHub.com and immediately assign it to the Copilot coding agent. The core focus is Model Context Protocol (MCP): how the Notion MCP server is configured to give Copilot access to a product requirements document stored in Notion, enabling it to implement a user reviews feature for the 'Copilot Airways' travel guide with full traceability back to the source document. The video also covers how MCP servers are provisioned inside GitHub Actions and how to use Copilot's PR change summary to navigate large code reviews.